Here's the paragraph completed using regular and irregular verbs, aiming for a natural flow:
The eldest monkey realized that they had been tricked. He lifted one finger and then another. He took his whole hand off. The other monkeys did the same. They saw that they now had flat stomachs!
Here's a breakdown of the regular and irregular verbs used:
* Regular Verbs:
* realized (past tense of realize)
* lifted (past tense of lift)
* saw (past tense of see)
* Irregular Verbs:
* been (past participle of be)
* had (past tense of have)
* took (past tense of take)
* did (past tense of do)